package nju.mscs.businesslogic;

import nju.mscs.data.object.*;

public interface ReturnGoods {
	public String[][] searchBill(String id);
	public String[] addGoods(String id);
	public boolean deleteGoods(String id);
	public double returnMoney();
	public boolean returning();
//	private void takeReceiot();
	//测试用方法
	public void setData(Database d);
}
